This is because it is only found along a rather small and sparsely populated stretch of coast around the Golfo San Jorge in southern Chubut and northern Santa Cruz Provinces, and because steamer ducks in general look fairly similar in plumage.

[citation needed] Adult female Chubut steamer ducks have brown heads and necks with small white line going from the back of the eye to the fore-neck.

[citation needed] The breeding season goes from October to February with nests made out of grass, sticks and litter from the high tide.

[3] All of the nests were found in bays or inlets with shallow water protected from strong winds or large waves.

[3] Chubut steamer Ducks face many threats such as oil exploration, habitat destruction, predation, and invasive species.

[3] The three main invasive species affecting the Chubut steamer ducks are Carcinus maenas (Green Crab), Wakame (Asian Kelp or Undaria pinnatifida) and Balanus glandula (Acorn Barnacle).

[3] Sub-marine predators of this species include the South American sea lion (Otaria byronia) and Killer whale (Orcinus orca).

[1] The UNESCO Biosphere Reserve also has included the breeding range of the Chubut steamer duck in its program.